diff --git a/android/assets/jsons/Techs.json b/android/assets/jsons/Techs.json
index cf114d2a..a53f1d63 100644
--- a/android/assets/jsons/Techs.json
+++ b/android/assets/jsons/Techs.json
@@ -93,6 +93,7 @@
 				cost:85,
 				row:1,
 				prerequisites:["Sailing"],
+				uniques:["Enables embarkation for land units"]
 			},
 			{
 				name:"Horseback Riding",
@@ -161,7 +162,7 @@
 				name:"Guilds",
 				row:7,
 				prerequisites:["Currency"],
-				baseDescription:"Enables conversion of city production to gold"
+				uniques:["Enables conversion of city production to gold"]
 			},
 			{
 				name:"Metal Casting",
@@ -186,7 +187,7 @@
 				name:"Education",
 				row:3,
 				prerequisites:["Theology","Civil Service"],
-				baseDescription:"Enables conversion of city production to science"
+				uniques:["Enables conversion of city production to science"]
 			},
 			{
 				name:"Chivalry",
@@ -197,7 +198,7 @@
 				name:"Machinery",
 				row:8,
 				prerequisites:["Guilds","Engineering"],
-				baseDescription:"Improves movement speed on roads"
+				uniques:["Improves movement speed on roads"]
 			},
 			{
 				name:"Physics",
@@ -221,7 +222,7 @@
 			{
 				name:"Astronomy",
 				row:2,
-				baseDescription:"Increases embarked movement +1",
+				uniques:["Increases embarked movement +1","Enables embarked units to enter ocean tiles"],
 				prerequisites:["Compass","Education"]
 			},
 			{
@@ -339,7 +340,7 @@
 			{
 				name:"Steam Power",
 				row:7,
-				baseDescription:"Increases embarked movement +1",
+				uniques:["Increases embarked movement +1"],
 				prerequisites:["Industrialization","Scientific Theory","Rifling"]
 			},
 			{
@@ -419,7 +420,7 @@
 				name:"Computers",
 				row:5,
 				prerequisites:["Mass Media"],
-				baseDescription:"+10% science and production in all cities"		
+				uniques:["+10% science and production in all cities"]
 			},
 			{
 				name:"Nuclear Fission",
@@ -486,7 +487,7 @@
 				name:"Future Tech",
 				row:5,
 				prerequisites:["Nanotechnology","Particle Physics","Satellites"],
-				baseDescription:"Who knows what the future holds?"
+				uniques:["Who knows what the future holds?"]
 			}
 		]	
 	}
diff --git a/core/src/com/unciv/logic/city/CityStats.kt b/core/src/com/unciv/logic/city/CityStats.kt
index 2b265122..8c6a0174 100644
--- a/core/src/com/unciv/logic/city/CityStats.kt
+++ b/core/src/com/unciv/logic/city/CityStats.kt
@@ -58,7 +58,10 @@ class CityStats {
 
     private fun getStatPercentBonusesFromRailroad(): Stats {
         val stats = Stats()
-        if (cityInfo.civInfo.tech.isResearched("Combustion")
+        val techEnablingRailroad = GameBasics.TileImprovements["Railroad"]!!.techRequired!!
+        // If we conquered enemy cities connected by railroad, but we don't yet have that tech,
+        // we shouldn't get bonuses, it's as if the tracks aare layed out but we can't operate them.
+        if (cityInfo.civInfo.tech.isResearched(techEnablingRailroad)
                 && (cityInfo.isCapital() || isConnectedToCapital(RoadStatus.Railroad)))
             stats.production += 25f
         return stats
@@ -79,7 +82,7 @@ class CityStats {
     private fun getStatPercentBonusesFromComputers(): Stats {
         val stats = Stats()
 
-        if (cityInfo.civInfo.tech.isResearched("Computers")) {
+        if (cityInfo.civInfo.tech.getUniques().contains("+10% science and production in all cities")) {
             stats.production += 10f
             stats.science += 10f
         }
diff --git a/core/src/com/unciv/logic/city/IConstruction.kt b/core/src/com/unciv/logic/city/IConstruction.kt
index 6a04117c..21fab516 100644
--- a/core/src/com/unciv/logic/city/IConstruction.kt
+++ b/core/src/com/unciv/logic/city/IConstruction.kt
@@ -18,12 +18,12 @@ open class SpecialConstruction(override var name: String, override val descripti
         fun getSpecialConstructions(): List<SpecialConstruction> {
             val science =  object:SpecialConstruction("Science", "Convert production to science at a rate of 4 to 1"){
                 override fun isBuildable(construction: CityConstructions): Boolean {
-                    return construction.cityInfo.civInfo.tech.isResearched("Education")
+                    return construction.cityInfo.civInfo.tech.getUniques().contains("Enables conversion of city production to science")
                 }
             }
             val gold =  object:SpecialConstruction("Gold", "Convert production to gold at a rate of 4 to 1"){
                 override fun isBuildable(construction: CityConstructions): Boolean {
-                    return construction.cityInfo.civInfo.tech.isResearched("Guilds")
+                    return construction.cityInfo.civInfo.tech.getUniques().contains("Enables conversion of city production to gold")
                 }
             }
             val idle =  object:SpecialConstruction("Nothing", "The city will not produce anything."){
diff --git a/core/src/com/unciv/logic/civilization/CivilizationInfo.kt b/core/src/com/unciv/logic/civilization/CivilizationInfo.kt
index 1f501c40..1ffb0f77 100644
--- a/core/src/com/unciv/logic/civilization/CivilizationInfo.kt
+++ b/core/src/com/unciv/logic/civilization/CivilizationInfo.kt
@@ -48,7 +48,6 @@ class CivilizationInfo {
 
     constructor(civName: String, gameInfo: GameInfo) {
         this.civName = civName
-//        this.gameInfo = gameInfo // already happens in setTransients
         tech.techsResearched.add("Agriculture")
     }
 
@@ -236,7 +235,7 @@ class CivilizationInfo {
 
     fun isDefeated()= cities.isEmpty() && !getCivUnits().any{it.name=="Settler"}
     fun getEra(): TechEra {
-        val maxEraOfTech =  tech.techsResearched.map { GameBasics.Technologies[it]!! }
+        val maxEraOfTech =  tech.getResearchedTechs()
                 .map { it.era() }
                 .max()
         if(maxEraOfTech!=null) return maxEraOfTech
diff --git a/core/src/com/unciv/logic/civilization/TechManager.kt b/core/src/com/unciv/logic/civilization/TechManager.kt
index 5185d08c..c9850e43 100644
--- a/core/src/com/unciv/logic/civilization/TechManager.kt
+++ b/core/src/com/unciv/logic/civilization/TechManager.kt
@@ -56,6 +56,11 @@ class TechManager {
     fun canBeResearched(TechName: String): Boolean {
         return GameBasics.Technologies[TechName]!!.prerequisites.all { isResearched(it) }
     }
+
+    fun getResearchedTechs() = techsResearched.map { GameBasics.Technologies[it]!! }
+
+    fun getUniques() = getResearchedTechs().flatMap { it.uniques }
+
     //endregion
 
     fun nextTurn(scienceForNewTurn: Int) {
diff --git a/core/src/com/unciv/logic/map/MapUnit.kt b/core/src/com/unciv/logic/map/MapUnit.kt
index 32e2327d..5e8b6983 100644
--- a/core/src/com/unciv/logic/map/MapUnit.kt
+++ b/core/src/com/unciv/logic/map/MapUnit.kt
@@ -109,9 +109,10 @@ class MapUnit {
     fun canPassThrough(tile: TileInfo):Boolean{
         val tileOwner = tile.getOwner()
         if(tile.isWater() && baseUnit.unitType.isLandUnit()){
-            if(!civInfo.tech.isResearched("Optics"))
+            val techUniques = civInfo.tech.getUniques()
+            if(!techUniques.contains("Enables embarkation for land units"))
                 return false
-            if(tile.baseTerrain == "Ocean" && !civInfo.tech.isResearched("Astronomy"))
+            if(tile.baseTerrain == "Ocean" && !techUniques.contains("Enables embarked units to enter ocean tiles"))
                 return false
         }
         if(tile.isLand() && baseUnit.unitType.isWaterUnit())
@@ -167,8 +168,7 @@ class MapUnit {
 
     fun getEmbarkedMovement(): Int {
         var movement=2
-        movement += civInfo.tech.techsResearched.map { GameBasics.Technologies[it]!! }
-                        .count { it.baseDescription!=null && it.baseDescription!! == "Increases embarked movement +1" }
+        movement += civInfo.tech.getUniques().count { it == "Increases embarked movement +1" }
         return movement
     }
 
diff --git a/core/src/com/unciv/logic/map/UnitMovementAlgorithms.kt b/core/src/com/unciv/logic/map/UnitMovementAlgorithms.kt
index de0309cb..3c7356ab 100644
--- a/core/src/com/unciv/logic/map/UnitMovementAlgorithms.kt
+++ b/core/src/com/unciv/logic/map/UnitMovementAlgorithms.kt
@@ -16,7 +16,7 @@ class UnitMovementAlgorithms(val unit:MapUnit) {
 
         if (from.roadStatus !== RoadStatus.None && to.roadStatus !== RoadStatus.None) //Road
         {
-            if (unit.civInfo.tech.isResearched("Machinery")) return 1 / 3f
+            if (unit.civInfo.tech.getUniques().contains("Improves movement speed on roads")) return 1 / 3f
             else return 1 / 2f
         }
         if (unit.hasUnique("Ignores terrain cost")) return 1f
diff --git a/core/src/com/unciv/models/gamebasics/tech/Technology.kt b/core/src/com/unciv/models/gamebasics/tech/Technology.kt
index ccfd7bd2..cffa145c 100644
--- a/core/src/com/unciv/models/gamebasics/tech/Technology.kt
+++ b/core/src/com/unciv/models/gamebasics/tech/Technology.kt
@@ -10,7 +10,7 @@ class Technology : ICivilopedia {
     override val description: String
         get(){
             val SB=StringBuilder()
-            if(baseDescription!=null) SB.appendln(baseDescription!!.tr())
+            for(unique in uniques) SB.appendln(unique.tr())
 
             val improvedImprovements = GameBasics.TileImprovements.values.filter { it.improvingTech==name }.groupBy { it.improvingTechStats.toString() }
             for (improvement in improvedImprovements) {
@@ -42,9 +42,9 @@ class Technology : ICivilopedia {
         }
     lateinit var name: String
 
-    var baseDescription: String? = null
     var cost: Int = 0
     var prerequisites = HashSet<String>()
+    var uniques = ArrayList<String>()
 
     var column: TechColumn? = null // The column that this tech is in the tech tree
     var row: Int = 0